actions/ssh-key-action
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update README

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shimataro 2021-03-09 13:58:27 +09:00
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README.md
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@ -43,6 +43,8 @@ steps:
See [Workflow syntax for GitHub Actions](https://help.github.com/en/articles/workflow-syntax-for-github-actions) for details.
**NOTE:** `known_hosts: no` with `StrictHostKeyChecking=no` is not secure. Use it ONLY IF you are using secure methods, such as SSHFP and signed server key.
### Install multiple keys
If you want to install multiple keys, call this action multiple times.
@ -97,12 +99,18 @@ Use `if_key_exists` parameter.
* `ignore`: does nothing
* `fail`: fails (default)
### Why is it required to set `known_hosts` to `no`? Isn't it better to make `known_hosts` just omitable?
### I want to omit `known_hosts`.
It's for a heads up, in order not to omit without thinking.
First of all, you have to understand that it is NOT secure to SSH with no `known_hosts` and using `StrictHostKeyChecking=no` option.
You should understand that it is not secure to SSH with no `known_hosts` file and using `StrictHostKeyChecking=no` option.
And should set `known_hosts` to `no` ONLY IF you are using secure methods, such as SSHFP and signed server key.
Why do you want to omit it?
If the reason is **"I'm not understanding about the function of `known_hosts`"** or **"It's bother to fetch server key"**, you should not omit.
If **"It is hard to prefetch server key because the server will be created dynamically"**, you can use bastion server.
By the way, there are some secure methods to SSH without `known_hosts`, such as SSHFP and signed server key.
And here is a special value to omit `known_hosts`. You should use it ONLY IF you are sure that it is secure enough.
You should use it ONLY IF you are using secure methods...
It is `known_hosts: no`.
### How do I use encrypted SSH key?

2
action.yml
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@ -14,7 +14,7 @@ inputs:
required: false
default: "id_rsa"
known_hosts:
description: "public keys of SSH servers, or set to 'no' in order to omit it"
description: "public keys of SSH servers"
required: true
default: ""
config: